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Cycle Beating - An Analysis of the Boundaries During Vehicle Testing
Linköpings universitet, Institutionen för systemteknik, Fordonssystem. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för systemteknik, Fordonssystem. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0001-8646-8998
Linköpings universitet, Institutionen för systemteknik. Linköpings universitet, Tekniska fakulteten.
2016 (engelsk)Inngår i: IFAC PAPERS ONLINE, ELSEVIER SCIENCE BV , 2016, Vol. 49, nr 11, s. 657-664Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Todays vehicle industry is strictly controlled by environmental legislations. The vehicle industry is spending much money out reducing the fuel consumption and fulfilling the emission requirements to make sales possible in different regions in the world. Before introducing; a vehicle on the market, it is tested according to standardized driving cycles to specify the vehicle pollutant emissions and fuel consumption. These cycles allow some deviation from the reference vehicle speed during tests, e.g. NEDC allows deviations of +/- 2 km/h and +/- 1 s. This paper uses dynamic programming to find fuel optimal velocity profiles, given the allowed deviations of +/- 2 km/h and +/- 1 s from reference speed during drive cycle test. By taking advantage of the allowed deviation, the fuel consumption can be reduced by up to 16.56 % according to model results, ruoriing NEDC if gear selections are unrestricted (i.e. using automatic gearbox), and up to 5.90 % if changing gears according to the specifications in the drive cycle. Two different optimization goals are investigated, minimum amount of mass fuel consumed and best mileage. (C) 2016, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

sted, utgiver, år, opplag, sider
ELSEVIER SCIENCE BV , 2016. Vol. 49, nr 11, s. 657-664
Serie
IFAC PAPERS ONLINE, ISSN 2405-8963
Emneord [en]
Dynamic Programming; Cycle Beating
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-132241DOI: 10.1016/j.ifacol.2016.08.095ISI: 000383464400095OAI: oai:DiVA.org:liu-132241DiVA, id: diva2:1039383
Konferanse
8th IFAC Symposium on Advances in Automotive Control (AAC)
Tilgjengelig fra: 2016-10-24 Laget: 2016-10-21 Sist oppdatert: 2018-01-30

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